| Impressive, isn't it! during normal height, idling, I don't get any visible leaks (first 10 seconds of video). The big bubbles only happen after raising the vehicle with the button on dashboard. when I turn off the car it does leak overnight, but not too much. The wheel gets into the wheel well only while rough road conditions. I started to get the "car low" airmatic warning only when going over bumpy roads, as if it lost air during compression, and the pump did not re-inflate, which I believe from other posts here that the pump stops after a certain amount of continuous operation. The back end of the car at that point is quite high - probably from over-inflation. The struts, pump and relay seem okay, for now, since it does re-inflate when turning the car on.
In thinking about this problem, does anyone know why the struts have a "removable" seal on the top? I mentioned this problem to a "plummer" friend and he said "why not solder the existing cap, to seal it?" he said it can be undone, and cleaned in the future, and that it should withstand the high pressures within the strut. any comments? ideas? When and why is the upper seal cap designed to be removed - to fix the strut? I was under the impression that the strut usually needs full replacement if damaged (and in pairs).
In terms of pressure, I also wonder about the plastic tube feeding the strut via the valve - how much pressure is actually produced in the strut? The clear plastic tube doesn't seem to need to handle high pressure - right? what does the valve actually do? help to get air into the high-pressure strut from the low-pressure tube?
Sorry for all the questions - just trying to understand and properly fix the problem.
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2002 S500 - W220.175
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